-82.86% is the change from 455 to 78
Calculation steps:
[( 78 - 455 ) ÷ 455] x 100 = -82.86%
Formula
Percentage change = [(78 - 455) / 455] x 100
Subtract the new number by the original number
78 - 455 = -377
-377 ÷ 455 = -0.8285714285714286
-0.8285714285714286 x 100 = -82.86%